22531

Properties

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 96 ones.at n=16A031864
• First member of a prime quadruple in a 2p-1 progression.at n=12A057327
• Smallest primes starting a complete three iterations Cunningham chain of the second kind.at n=6A110024
• Smallest primes starting a complete three iterations Cunningham chain of the first or second kind.at n=20A110025
• Primes of the form k*(k+2)/3 - 2, k > 0.at n=34A162307
• Primes p such that 5*p+2, 7*p+4 and 11*p+6 are also prime.at n=25A173880
• Primes of the form k*2^k + 3.at n=6A182354
• Primes with nonzero digits such that sum of cubes of digits equal to square of sums.at n=7A225567
• Consider two consecutive primes {p,q} such that P=2p+q and Q=2q+p are both prime. The sequence gives primes P.at n=43A248482
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 662", based on the 5-celled von Neumann neighborhood.at n=42A273390
• Primes p such that both 2p-1 and 2p^2-2p+1 are prime.at n=24A274609
• Primes p such that the sum of the squares of digits of p equals the sum of digits of p^2.at n=8A290972
• Poincaré series for invariant polynomial functions on the space of binary forms of degree 10.at n=39A293935
• Primes p whose last digit is the same as that of both its predecessor prime and its successor prime.at n=19A298075
• Indices n for which the partial sums of sin(k) (0 <= k <= n) reach a new minimum.at n=38A322288
• Primes p such that p-2 is the product of two emirps.at n=33A345198
• Number of pairs of Dyck paths of length 2*n touching the axis at the same points.at n=7A391955
• Prime numbersat n=2518